Correlation Coefficient between Vickers Hardness and Nuclear Technique

Abstract:

The aim of this work is to establish a correlation coefficient between the positron annihilation lifetime technique (PALS) and the Vickers hardness for the heat treatable aluminum alloys (6066, 6063).The potential of positron annihilation spectroscopy in the study of light alloys is illustrated with special regards to age hardening, severe plastic deformation, annealing and quenching in aluminum alloys. Vickers hardness is the standard method for measuring the hardness of metals, particularly those with extremely hard surfaces. Accordingly, a correlation coefficient of 90 % between τ and Hv is obtained. This correlation can help us to explain many behaviors of these alloys under deferent conditions.

• Periodical: Defect and Diffusion Forum (Volume 344)
• Pages: 129-136
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.344.129
• Online since: October 2013
• Authors: Emad A. Badawi, M.A. Abdel-Rahman, Alaa El-Deen A. El-Nahhas
• Keywords: Age Hardening, HV Values, Plastic Deformation, Positron Annihilation Lifetime Spectroscopy

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